It's a learning process. For a while, Castiel just sucks and moves down further before pulling back. Then he remembers that he has his tongue and uses that, and then attempts to use them both at the same time but doesn't feel like he has enough room in his mouth to do a whole lot of stuff, so eventually he alternates between tongue and lips and mouth and he thinks he's found a happy medium, because most of the sounds Dean makes are good.
...except this is taking an awfully long time. Cas knows that if this was happening to him he'd have been done a long time ago. He pulls back and wipes his mouth with his wrist. "Am I not doing this correctly?"
no subject
It's a learning process. For a while, Castiel just sucks and moves down further before pulling back. Then he remembers that he has his tongue and uses that, and then attempts to use them both at the same time but doesn't feel like he has enough room in his mouth to do a whole lot of stuff, so eventually he alternates between tongue and lips and mouth and he thinks he's found a happy medium, because most of the sounds Dean makes are good.
...except this is taking an awfully long time. Cas knows that if this was happening to him he'd have been done a long time ago. He pulls back and wipes his mouth with his wrist. "Am I not doing this correctly?"